1.

The effectiveness E can be defined as ____

A. FX<sub>D</sub>/ BX<sub>D</sub>
B. BX<sub>D</sub>/FX<sub>F</sub>
C. DX<sub>D</sub>/FX<sub>F</sub>
D. BX<sub>D</sub>/ DX<sub>F</sub>
Answer» D. BX<sub>D</sub>/ DX<sub>F</sub>


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